/*
 * Copyright (c) 2019, 2021 Oracle and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.helidon.common.reactive;

import java.util.concurrent.Flow.Subscription;

/**
 * Empty subscription singleton.
 */
final class EmptySubscription implements Subscription {

    static final EmptySubscription INSTANCE = new EmptySubscription();

    EmptySubscription() {
    }

    @Override
    public void request(long n) {
    }

    @Override
    public void cancel() {
    }
}
